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Non-universal Z from fluxed GUTs

Non-universal Z from fluxed GUTs
Non-universal Z from fluxed GUTs

We make a first systematic study of non-universal TeV scale neutral gauge bosons Z arising naturally from a class of F-theory inspired models broken via SU(5) by flux. The phenomenological models we consider may originate from semi-local F-theory GUTs arising from a single E8 point of local enhancement, assuming the minimal Z2 monodromy in order to allow for a renormalisable top quark Yukawa coupling. We classify such non-universal anomaly-free U(1) models requiring a minimal low energy spectrum and also allowing for a vector-like family. We discuss to what extent such models can account for the anomalous B-decay ratios RK and RK .

0370-2693
353-361
Crispim Romao, Miguel
9e6a357e-1637-4924-90a2-67f5e6404452
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
Leontaris, George K.
f4bef063-d030-4e71-a2aa-a046297e31cf
Crispim Romao, Miguel
9e6a357e-1637-4924-90a2-67f5e6404452
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
Leontaris, George K.
f4bef063-d030-4e71-a2aa-a046297e31cf

Crispim Romao, Miguel, King, Stephen F. and Leontaris, George K. (2018) Non-universal Z from fluxed GUTs. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 782, 353-361. (doi:10.1016/j.physletb.2018.05.057).

Record type: Article

Abstract

We make a first systematic study of non-universal TeV scale neutral gauge bosons Z arising naturally from a class of F-theory inspired models broken via SU(5) by flux. The phenomenological models we consider may originate from semi-local F-theory GUTs arising from a single E8 point of local enhancement, assuming the minimal Z2 monodromy in order to allow for a renormalisable top quark Yukawa coupling. We classify such non-universal anomaly-free U(1) models requiring a minimal low energy spectrum and also allowing for a vector-like family. We discuss to what extent such models can account for the anomalous B-decay ratios RK and RK .

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Accepted/In Press date: 19 May 2018
e-pub ahead of print date: 22 May 2018
Published date: 10 July 2018

Identifiers

Local EPrints ID: 421385
URI: http://eprints.soton.ac.uk/id/eprint/421385
ISSN: 0370-2693
PURE UUID: a287bb94-c559-4076-a283-4477d8359353

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Date deposited: 07 Jun 2018 16:30
Last modified: 07 Oct 2020 00:48

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